Spray-lam p



(No Model.) 2 Sheets-Sheet 1. A. SHEDLOCK. SPRAY LAMP.

Patented Nov. 19, 1889.

Irma/z for N) mans PhMoUiMgr-mhur. Wuhiniloll. D. C.

UNITED STATES ATENT OFFICE.

ALFRED SHEDLOCK, OF JERSEY CITY, NEIV JERSEY.

SPRAY- LAM P.

SPECIFICATION forming part of Letters Patent No. 415,398, dated November19, 1889.

Application filed July 12, 1888. Serial No. 279,787. (No model.)

To all whom it 11111.1 concern:

Be it known that I, ALFRED SHEDLooK, a citizen of the United States,residing at J ersey City, county of Hudson, State of New Jersey, haveinvented certain new and useful Improvements in Spray-Lamps, of whichthe following is a specification.

The spray-lamp forming the subject of this application has both the airand oil valves at the point where the air and oil issue from the burner,thus insuring a steady and uniform supply of oil to the flame when inoperation and preventing any evaporation and consequent gumming up ofthe oil when the lamp is out of use. Both the air and oil valves areoperated by the same handle, which is so arranged that when it is turnedin one direction it first opens the air-valve, and then by furtherturning in the same direction it opens the oil-valve, and by a reversalof this order of its action the oil-valve is first closed and then theair-valve. This arrangement makes it impossible to throw out a stream ofoil, either in the opening or the closing of the valves, before lightingor on ex tinguishing the lamp. In conjunction with this handle thatoperates the valves adj usting devices are provided that can be set toallow of the escape of the air and oil in any desired relativeproportions to produce the character of flame desired. The relighter isat the upper end of an unbroken tube, which extends to the bottom of theoil-tank. This feature of construction is also carried out in the mainoil-pipe and is a veryimport-ant one in lamps'devised for the use ofliquid hydrocarbons, as it is ditficult to make joints and connectionsthrough which such liquids will not penetrate.

In the accompanying drawings, to which I will now refer to more fullyexplain my improvements, Figure 1 is a central sectional elevation of aspray-lamp made according to my invention. Fig. 2 is an elevation,partly in sec tion, of the upper part of the lamp, taken at right anglesto Fig. 1. Fig. 3 is a plan view of the burner with the flame-guardremoved. Fig. 4 is a transverse section taken on the line a: a, Fig. 2.Fig. 5 is an enlarged view of the relighting device and adjacent parts.

As in other lamps of this class, the oil which is placed in thereservoir a is expelled under pressure from the inner nozzle 7 into aVolume of compressed air passing up around said nozzle, and the mixedair and oil then issue into the combustion-chamber 2 through the nozzle(5. The nozzle '7 constitutes the upper end of the oil-pipe 8, whichextends down without seam or joint nearly to the bottom of the reservoir(1, and the nozzle 6 is secured by means of a screw-thread into theupper end of the stem or body 1 of the burner, which is screwed into thesocket b, fastened to the top of the reservoir 0. The nozzle 7 is fittedinto the nozzle 6 to act as a valve to control the air passing to andthrough the nozzle 6, and inside the nozzle Z is fitted anoil-controlling valve attached to or forming a part of the rod 14.

In spray-lamps as now made having oil and air valves, each valve isprovided with an independent operating-handle, and with the oil underpressure it is imperative that the air-valve be opened first uponlighting alamp and the oil-valve be closed first upon extinguishing it,and the valves have to be set by trial-adjustment each time the lamp islighted to produce the flame desired.

Now, one of the leading features of this lamp is the method of actuatingboth the air and oil valves by means of one handle, causing theair-valve to be opened before the oilvalve when the handle is turned inone direction to start the lamp, and causing the oil-valve to be closedbefore the air-valve when the handle is turned in the reverse direetionto extinguish the flame, and also in causing both the air and the oilvalves to be opened to a definite extent each time the handle isactuated in lighting the lamp. The means here shown by which this newmethod of operating spray-lamps is carried out consists of the cam 9,rigidly secured to the oilpipe 8, and having two cam-slots c and d, theeccentric-pin 10, projecting inwardly from the body 1 and fitting intothe slots, the pin 12, projecting from the bearing-piece 13 on the topof the pipe 15, and passing through the slot (6 into the verticalguide-groove 6 formed in the body 1, the holder 16, secured to the lowerend of the pipe 15 and carrying the rod of the oil-valve 14, the handle24, provided with the adjustable stop 27 and connected to the stem 29,whichis fitted to rotate in a taper hole in the body 1, and provided atits lower end with bevel-teeth arranged to work'into bevel-teeth formedon the cam 9, as shown at Figs. 2 and 4. The cam 9 is provided with aneck which fits into the lower end of the central passage of the body 1,and as there is an equal pressure of air above and below this neck it isonly necessary to make an ordinary fit between the neck and body. Theneck may be provided with packingrings, as shown at Figs. 1 and 2. Thepin 10 has a taper shoulder seated into a recessed hole formed throughthe body 1, and is held rigidly therein by means of the hollow screwplug11. The part of the pin 10 which extends into the slot 0 of the cam 9 isformed eccentric to the taper shoulder, as shown at Fig; 2. The slotscand d are partly straight and partly inclined, the straight part of theone being opposite to the inclined part of the other, as clearly shownat Fig. 1, so that when the inclined part of the slot 0 of the cam 9 isbeing moved over the pin 10 to open the airvalve of the burner thestraight part of the slot d travels over the pin 12 without moving theoil-valve, which is now closed. Now, when the straight part of the slot0 moves over the pin 10 the nozzle 7, constituting the air-valve, isheld in open position, allowing the air to issue at a uniform ratethrough the nozzle (3, and the pin 12 is moved down by the inclined partof the slot (1, thereby opening the oil-valve on the end of the rod 14in nozzle 7, through the medium of the bearing-piece 13, pipe 15, andvalve-rod holder 16. NVhen the cam 9, actuated by the handle 24, hasmoved the valve on the rod 14 away from its seat in the nozzle 7sufficiently to allow the right quantity of oil to issue through saidnozzle, the stop 27, carried by the handle 24, is set against the lug eon the side of the body 1, and is securely locked in position on thehandle by means of the screw 28. a The quantity of air passing throughthe nozzle 6 necessary to insure the perfect combustion and spraying ofthe oil is governed by the adjustment of the eccentricpin 10, which whenset is clamped in position by the screw-plug 11. The oil-valve rod 14 isscrew-threaded at its lower end and passes through a tapped hole in theholder 16, thus enabling the valve to be closed tightly in the nozzle7when the pin 12 is in the straight part of the slot d of the cam 9. Theclampingscrew 17 prevents the rod 1 1 shifting in the holder 16.

The upper part of the burner comprises the combustion-chamber 2, securedto the top of the body 1 by the outer nozzle 6, the coil of pipe 4,located in the combustion-chamber 2, and having its ends bent so as toextend through openings in the sides thereof, and the flame-guard 3,resting on the top of the combustion-chamber and extending down theinterior of coil 4. Along the side of the body 1 is formed theair-passage f, into which the air enters through the inlet-cock 23 fromany suitable source of compressed-air supply.

One end of the coil 4 is connected to the upper end of this air-passage,and the other end of the coil is connected to the side branch g, whichopens into the central passage of the body 1. r

Each of the couplings here used for connecting the two ends of the coilto the body of the lamp consists simply of a sleeve 5, fitted by ascrew-thread on the coil, the ends of which are made conical tocorrespond to taper recesses formed in the branches fai'id g of thebody. The outsides of the sleeves 5- are screw-threaded in oppositedirection to their internal threads and fit into correspondinglytappedholes in the branches f and g of the body 1. To make these joints, thesleeves5 5 are screwed on the ends of the coil 4 after it has beenplaced in the combustion-chamber 2, and ihen the sleeves are entered inthe tapped holes in the branches f and g. are now screwed into thebranches fand g, the ends of the coils pass down and extend beyond thesleeves and are ultimately jammed tightly into the taper recesses.

Instead of making the joints between the coil and the body taper in formthey may be As the sleeves,

made flat, and washers used to insure tight ness.

The relighting device comprises the asbestus wick it, held in thewick-tube 20, which is attached to the upper end of the pipe 19. Thispipe 19 passes down, without seam or joint, through the air-passagef,nearly to the bottom of the oil-reservoir a, and is held at its lowerend by a guide-hole formed through the oil-valve holder 16. It isadvantageous to supply this relighter with a valve to regulate thesupply of oil thereto, and this is done by fitting the pointed plug 21by a screwthread into the piece 18, attached to or forming a part of thepipe 19, and providing aseat therefor in the said piece 18. The wicktube20 passes through a hole in the bottom of the combustion-chamber 2 andthe flange i of the body 1 It sets over the upper end of the piece 18,and by means of an internal slot arranged to embrace a pin projectingfrom the valve 21, it when rotated turns said valve, and so regulatesthe amount of oil allowed to pass to the Wick h. The jam-nut 22 on thewick-tube 20, by being set against the flange 2' of the body, makes atight joint between the lower end of the wick-tube and a flange on thepiece 18 and a tight joint between said flange and the top of theair-passage f, as

clearly shown at Fig. 5.

a through the lower end of the air-passage f, thereby forcing the oil upthe pipes 8 and 19, and it passes through the coil 4 into the mainpassage of the body, from whence it issues through the nozzle 6,thoroughly spraying and intermingling with the oil which issues from thenozzle 7.

It will be observed that by reason of the oil-pipes 8 and 19 beingwithout scam or joint and the reservoir a being made both air and oiltight, the oil cannot possibly escape from said reservoir except throughthe upper ends of said pipes 8 and 19, and there it is immediatelyconsumed. This is an important feature of construction in lamps of thisdescription, all danger from leaking oil being thereby avoided.

Having now described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. In aspray-lamp, in combination,an outer air-nozzle, an oil-nozzlefitted in the air-nozzle as a valve to shut OE and regulate the supplyof air, a valve located in the oil-nozzle to shut off and regulate thesupply of oil, and a handle connected to the combined oilnozzle andair-valve and the oil-valve, constructed to actuate the air-valve andthe oilvalve successively by a single adjustment of the handle.

2. In a spray-lamp, the combination, with an outer air-nozzle, an inneroil-nozzle arranged to act as a valve to the air-nozzle, and a valvelocated in the oil-nozzle, of a handle and connection between the handleand the oil-nozzle and the oil-valve, whereby it is caused to first movethe oil-nozzle away from the airnozzle, and then the oil-valve away fromthe oilnozzle, when turned in one direction, and to first close theoil-valve in the oil-nozzle, and then the oil-nozzle in the airnozzlewhen turned in the opposite direction.

3. In a spray-lamp, in combination, an oilreservoir having the body ofthe lamp attached thereto, an air-nozzle secured to the top of the body,a straight oil-pipe passing down through the body into the oil containedin the reservoir, an oil-nozzle on the top of the oil-pipe fitted as anair-valve in the airnozzle, and a handle passing through the body andconnected to the oil-pipe for adj ust- .ing it relatively to theair-nozzle.

i. In a spray-lamp, in combination, an oilreservoir having the body ofthe lamp attached thereto, an air-nozzle secured to the top of the body,a straight oil-pipe passing down the body into the oil contained in thereservoir, an oil-nozzle on the top of the oilpipe fitted as anair-valve in the air-nozzle, a handle passing through the body andconnected to the oil-pipe, a valve in the oil-nozzle carried by a rodextending up the oil-pipe, and connection between the lower end of thevalve-rod and the handle.

5. The combination, with a spray-lamp comprising an oil-tank, a bodyattached thereto and provided with an outer air-nozzle, and an theair-nozzle, and a pipe independent of the oil-nozzle-supply pipe joinedto the wick-tube and passing down into the oil in the oil-tank.

6. In a spray-lamp, in combination, an oiltank, a lamp-body attachedthereto having two vertical passages, an air-nozzle at theupper end ofone of the passages, an oil-nozzle on the end of a pipe passing throughthis passage into the oil in the oil-tank, an airsupply connect-ionjoined ,to the other passage, a heating-coil arranged above theairnozzle and connected at one end to the airsupply passage and at-itsother end to the passage in communication with the air-nozzle, a pipepassing through the air-supply passage into the oil in the oil-tank, anda wick-tube joined to the upper end of this plpe.

7. In a spray-lamp, the combination, with an outer air-nozzle, and aninner oil-nozzle arranged to act as a valve to the air-nozzle, of ahandle connected to the oil-nozzle, and an adjustable guide-pinconnected with the oilnozzle, by means of which the retraction of theoil-nozzle in the air-nozzle is governed.

S. In a spray-lamp, the combination, with an outer air-nozzle, and aninner oil-nozzle arranged to act as a valve to the air-nozzle, a valvelocated in the oil-nozzle, of a handle connected to the oil-nozzle andthe oil-valve, and an adjustable stop for the handle, by means of whichthe retraction of the oil-valve in the oil-nozzle is governed.

9. In a spray-lamp, the combination, with an outer air-nozzle, an inneroil-nozzle ar ranged to act as a valve to the air-nozzle, and a valvelocated in the oil-nozzle, of a handle connected to the oil-nozzle andthe oil-valve, an adjustable guide-pin for governing the movement of theoil-nozzle, and an adjustable stop for governing the movement of theoil-valve.

10. In a spray-lamp, in combination, a body having a vertical passage,an air-nozzle at the upper end of the passage, an oil-pipe provided witha nozzle located in the passage, a cam secured to the oil-pipe, a pinprojecting into the cam from the body, whereby the vertical movement ofthe oil-pipe is controlled, and a handle provided with a stem passingthrough the body and by means of which the cam is rotated.

11. In a spray-lamp, in combination, the body 1, the air-nozzle 6, theoil-pipe 8, provided with the oil-nozzle 7, the cam 9, provided withgear-teeth, the eccentric-pin engaging with the cam 10, the handle 24,and the stem 29 of the handle, provided with gear-teeth meshing with theteeth on the cam.

12. In a spray-lamp, in combination, the body 1, the air-nozzle 6, theoil-pipe 8, provided with the oil-nozzle 7, the cam 9, provided withgear-teeth, the eccentric-pin 10,

engaging with the cannthe handle 24:, its stem 29, gearing with theteeth on the cam, the valve-rod 14, and connections 12 13 15 16 betweenthe cam and the oil-valve rod.

13. In a spray-lamp, in combination, the body 1', the air-nozzle 6, theoil-pipe 8, pro- Vided with the oil-nozzle 7, the cam 9, provided withgear-teeth, the eccentric-pin 10 on the oil-pipe, engaging with the cam,the handle 24, its stem 29, provided with gear-teeth meshing with theteeth on the cam, the valve and rod 14, connections 12 13 15 16 betweenthe valve-rod and the cam, and the adjustable stop 27 on the handle.

14. In a spray-lamp, in combination, the body 1, provided With theair-passage f, the coil 4, the combustion-chamber 2, the branch? pipe g,connecting the passage f with the coil 4, and the sleeves 5 5, providedwith right and left handed screw-threads.

15. In a relighting device for spray-lamps, in combination, the body 1,having a flange z", the wick-tube 20, extending through theflange i, thevalve 21, the piece, 18, provided with the valve-seat, thepipe 19, forsupplying oil to the wick, and the jam-nut 22 at the junc-' tion of thewick-tube with the flange i.

In witness whereof I have hereunto set my hand, at New York, county andState of New York, this 10th day of July, 1888.

ALFRED SHEDLOCK.

Witnesses:

' OHAs. STILLWELL,

Jos. S. MICHAEL.

